Examples of com.mobixess.jodb.soda.api.Query.descend()

com.mobixess.jodb.soda.api.Query.descend()
returns a reference to a descendant node in the query graph.

If the node does not exist, it will be created.

All classes represented in the query node are tested, whether they contain a field with the specified field name. The descendant Query node will be created from all possible candidate classes. @param field path to the descendant. @return descendant {@link Query} node

        
        
        query = sessionContainer.query();
        query.constrain(ObjectA.class);
        if(ascending){
            query.descend("_val2").orderAscending();
        }else{
            query.descend("_val2").orderDescending();
        }
        
        list = (JODBQueryList) query.execute();

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        query = sessionContainer.query();
        query.constrain(ObjectA.class);
        if(ascending){
            query.descend("_val2").orderAscending();
        }else{
            query.descend("_val2").orderDescending();
        }
        
        list = (JODBQueryList) query.execute();
        if(list.size() == 0){
            throw new RuntimeException();

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            sessionContainer = getContainerForFile(testFile);
        }
        Query query = sessionContainer.query();
        query.constrain(ObjectA.class);
        if(ascending){
            query.descend("_val1").orderAscending();
        }else{
            query.descend("_val1").orderDescending();
        }
        if(ascending){
            query.descend("_val2").orderAscending();

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        Query query = sessionContainer.query();
        query.constrain(ObjectA.class);
        if(ascending){
            query.descend("_val1").orderAscending();
        }else{
            query.descend("_val1").orderDescending();
        }
        if(ascending){
            query.descend("_val2").orderAscending();
        }else{
            query.descend("_val2").orderDescending();

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            query.descend("_val1").orderAscending();
        }else{
            query.descend("_val1").orderDescending();
        }
        if(ascending){
            query.descend("_val2").orderAscending();
        }else{
            query.descend("_val2").orderDescending();
        }
        JODBConfig.setCacheOnSortOperations(false);
        List list = query.execute();

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            query.descend("_val1").orderDescending();
        }
        if(ascending){
            query.descend("_val2").orderAscending();
        }else{
            query.descend("_val2").orderDescending();
        }
        JODBConfig.setCacheOnSortOperations(false);
        List list = query.execute();
        if(list.size() == 0){
            throw new RuntimeException();

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        }
        
        query = sessionContainer.query();
        query.constrain(ObjectA.class);
        if(ascending){
            query.descend("_val2").orderAscending();
        }else{
            query.descend("_val2").orderDescending();
        }
        
        JODBConfig.setCacheOnSortOperations(true);

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        query = sessionContainer.query();
        query.constrain(ObjectA.class);
        if(ascending){
            query.descend("_val2").orderAscending();
        }else{
            query.descend("_val2").orderDescending();
        }
        
        JODBConfig.setCacheOnSortOperations(true);
        list = query.execute();
        if(list.size() == 0){

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        }
        
        Query query = sessionContainer.query();
        query.constrain(ObjectA.class);


        query.descend("_val2").constrain(0).smaller();
        
        
        long queryStart = System.currentTimeMillis();
        JODBQueryList list = (JODBQueryList) query.execute();
        long noneIndexQuery = System.currentTimeMillis() - queryStart;

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        query = sessionContainer.query();
        query.constrain(ObjectA.class);


        query.descend("_val2").constrain(0).smaller();
        
        queryStart = System.currentTimeMillis();
        list = (JODBQueryList) query.execute();
        long queryWithIndex = System.currentTimeMillis() - queryStart;
        System.err.println("queryWithIndex="+queryWithIndex);

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